About Prism Stack

Drop glowing blocks, torch full lines into light, and chase your fastest clear streak.

On a computer: Arrow keys move/rotate, Down soft drop, Space hard drop, R restart
On a phone: Swipe left/right to move, tap to rotate, swipe down to slam, tap restart icon

Timothée described this game in a sentence on OhMyGames and the AI built it. You can make your own the same way, free to start.